public override bool DragElement(TreeViewItem targetItem, Rect targetItemRect, bool firstItem)
{
AudioMixerTreeViewDragging.DragData dragData = DragAndDrop.GetGenericData("AudioMixerDragging") as AudioMixerTreeViewDragging.DragData;
if (dragData == null)
{
DragAndDrop.visualMode = DragAndDropVisualMode.None;
return(false);
}
bool flag = targetItem == null;
if (flag && this.m_TreeView.GetTotalRect().Contains(Event.current.mousePosition))
{
if (this.m_DropData != null)
{
this.m_DropData.dropTargetControlID = 0;
this.m_DropData.rowMarkerControlID = 0;
}
if (Event.current.type == EventType.DragPerform)
{
DragAndDrop.AcceptDrag();
if (this.m_MixersDroppedOnMixerCallback != null)
{
this.m_MixersDroppedOnMixerCallback(this.GetAudioMixersFromItems(dragData.m_DraggedItems), null);
}
}
DragAndDrop.visualMode = DragAndDropVisualMode.Move;
Event.current.Use();
return(false);
}
return(base.DragElement(targetItem, targetItemRect, firstItem));
}
public override DragAndDropVisualMode DoDrag(TreeViewItem parentNode, TreeViewItem targetNode, bool perform, TreeViewDragging.DropPosition dragPos)
{
AudioMixerTreeViewDragging.DragData dragData = DragAndDrop.GetGenericData("AudioMixerDragging") as AudioMixerTreeViewDragging.DragData;
if (dragData == null)
{
return(DragAndDropVisualMode.None);
}
List <AudioMixerItem> draggedItems = dragData.m_DraggedItems;
AudioMixerItem audioMixerItem = parentNode as AudioMixerItem;
if (audioMixerItem != null && dragData != null)
{
List <AudioMixerGroupController> groupsToBeMoved = (from i in draggedItems
select i.mixer.masterGroup).ToList <AudioMixerGroupController>();
List <AudioMixerGroupController> allAudioGroupsSlow = audioMixerItem.mixer.GetAllAudioGroupsSlow();
bool flag = AudioMixerController.WillModificationOfTopologyCauseFeedback(allAudioGroupsSlow, groupsToBeMoved, audioMixerItem.mixer.masterGroup, null);
bool flag2 = this.ValidDrag(parentNode, draggedItems) && !flag;
if (perform && flag2 && this.m_MixersDroppedOnMixerCallback != null)
{
this.m_MixersDroppedOnMixerCallback(this.GetAudioMixersFromItems(draggedItems), audioMixerItem.mixer);
}
return((!flag2) ? DragAndDropVisualMode.Rejected : DragAndDropVisualMode.Move);
}
return(DragAndDropVisualMode.None);
}
public override DragAndDropVisualMode DoDrag(TreeViewItem parentNode, TreeViewItem targetNode, bool perform, TreeViewDragging.DropPosition dragPos)
{
AudioMixerTreeViewDragging.DragData genericData = DragAndDrop.GetGenericData("AudioMixerDragging") as AudioMixerTreeViewDragging.DragData;
if (genericData == null)
{
return(DragAndDropVisualMode.None);
}
List <AudioMixerItem> draggedItems = genericData.m_DraggedItems;
AudioMixerItem audioMixerItem = parentNode as AudioMixerItem;
if (audioMixerItem == null || genericData == null)
{
return(DragAndDropVisualMode.None);
}
List <AudioMixerGroupController> list = draggedItems.Select <AudioMixerItem, AudioMixerGroupController>((Func <AudioMixerItem, AudioMixerGroupController>)(i => i.mixer.masterGroup)).ToList <AudioMixerGroupController>();
bool flag1 = AudioMixerController.WillModificationOfTopologyCauseFeedback(audioMixerItem.mixer.GetAllAudioGroupsSlow(), list, audioMixerItem.mixer.masterGroup, (List <AudioMixerController.ConnectionNode>)null);
bool flag2 = this.ValidDrag(parentNode, draggedItems) && !flag1;
if (perform && flag2 && this.m_MixersDroppedOnMixerCallback != null)
{
this.m_MixersDroppedOnMixerCallback(this.GetAudioMixersFromItems(draggedItems), audioMixerItem.mixer);
}
return(flag2 ? DragAndDropVisualMode.Move : DragAndDropVisualMode.Rejected);
}